Specifications

724-746-5500 | blackbox.com
Page 10
Black Box
Figure 4. Inserting flathead screwdriver
Twisted Pair Connection Using Terminal Blocks
If your application requires you to connect two pairs of bare wires to the ME670A, you
must open the case to access the terminal blocks. For your convenience, the ME670A
comes standard with a RJ-11/RJ-45 combo jack and a terminal block with strain relief.
The instructions on the following pages will tell you how to open the case, connect the
bare wires to the terminal blocks and fasten the strain relief collar in place so that the
wires won't pull loose.
1. Open the unit by gently inserting a flathead screwdriver into the special pry slot
on the plastic case (below). Don't worry about breaking the plastic, but make
sure that you do not insert the screwdriver more than 1/4” into the enclosure, as
you may damage the unit.Once the unit has been opened, you will be able to see
the terminal blocks located at the rear of the PC board.
Table 9. Plug Wiring
RJ-11 Signal RJ-45 Signal
1 GND* 1 N/C
2 RCV* 2 GND*
3XMT 3
RCV
-
4XMT 4XMT
5 RCV 5 XMT
6 GND* 6 RCV
7 GND*
8N/C